网络五倍的交叉验证;五重交叉验证 网络释义
Cross validation is critical in determining the quality of a predictive model and the costs in data collection and data mining. Several cross-validation (CV) techniques are available, including the -fold CV, leave-one-out CV, and the bootstrap type of CV. Some past studies have not revealed...
The fivefold differential cross sections of the simple ionization of hydrogen, deuterium, and tritium diatomic molecules are determined by the use of one-center Coulomb continuum wave functions describing the slow ejected electron. Vertical transitions from the lowest vibrational state of the fundamental...
1) fivefold differential cross section 五重微分截面1. The fivefold differential cross section for double-ionization of helium in the 5599eV incident energy are calculated through considering electrons momentum correlation effect of the final state function. 考虑末态波函数动量相关效应,计算了入射能量为...
Here, using three-dimensional (3D) electron diffraction mapping approach, we non-destructively explore the cross-sectional strain and the related strain-relief defect structures of an individual Ag FTNW with diameter about 30 nm. The quantitative analysis of the fine structure of intensity ...
according to the data of the Ministry of Commerce, the scale of cross-border e-commerce has increased nearly 10 times in five years, The scale of market procurement trade increased five times in six years. New business forms and models have become a new driving force to promote the transform...
" the national cross-border e-commerce comprehensive test area has been expanded to 105, and the cross-border e-commerce has increased nearly 10 times in five years, promoting the high-quality development of trade ". Ren Hongbin said that the" 14th five year plan "e-commerce is also facing...
A ten-fold cross-validation (10CV) was applied on a large data set ( N = 5769) to achieve an improved factor model for the PANSS items. The advantages of 10CV are minimal effect of sample characteristics and the ability to investigate the stability of items loading on multiple factors. ...